Finding the Fourth Proportional to 10,061.38, 13,884.78 and 5,585.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,061.38 : 13,884.78 = 5,585.55 : x
2. Step 2: Convert to fraction form
   10,061.38/13,884.78 = 5,585.55/x
3. Step 3: Cross multiply
   10,061.38x = 13,884.78 × 5,585.55
4. Step 4: Simplify right side
   10,061.38x = 77,554,132.93
5. Step 5: Solve for x
   x = 77,554,132.93/10,061.38
6. Step 6: Final answer
   x = 7,708.10